/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.phoenix.repository.dao;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * Jigsaw server
 * 
 * @author    <a href="shamphone@gmail.com">Li XiongFeng</a>
 * @date      2012-11-4
 * @version   1.0.0
 */
public class MaxNodeIndexDao extends JdbcDao {
	private static final String SQL_MAX_ORDERBYNO = "select Max(VINDEX) from node Where parent_id =? and name=? ";

	/**
	 * The max index value of child index. 
	 * 
	 * @param parentID  String
	 * @param name String, pay attention to the name can be wildcat. 
	 * @return int
	 * @throws SQLException
	 */
	public int query(String table, String parentID, String name) throws SQLException {
		PreparedStatement command = null;
		try {
			command = connection.prepareStatement(SQL_MAX_ORDERBYNO);
			command.setString(1, parentID);
			command.setString(2, name);
			int result = 0;

			ResultSet rs = command.executeQuery();
			if (rs.next()) {
				result = rs.getInt(1);
			}
			rs.close();
			command.close();
			return result;
		} finally {
			this.close(command);
		}
	}
}
